Hi Bart, I love your patch! Yet something to improve: [auto build test ERROR on mkp-scsi/for-next] [cannot apply to jejb-scsi/for-next linus/master v6.0-rc6 next-20220923] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Bart-Van-Assche/Fix-a-deadlock-in-the-UFS-driver/20220924-041421 base: https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next config: m68k-allmodconfig compiler: m68k-linux-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/ef035c21b5217f24bd5260255a6592644895ff2e git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Bart-Van-Assche/Fix-a-deadlock-in-the-UFS-driver/20220924-041421 git checkout ef035c21b5217f24bd5260255a6592644895ff2e # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "system_transition_mutex" [drivers/ufs/core/ufshcd-core.ko] undefined! -- 0-DAY CI Kernel Test Service https://01.org/lkp